Adaptive wimax CTC

Wimax 16e uses Convolutional code (CC) as a Turbo code base (TC). Adaptive CTC miminizes the calculation time by checking the converging condition. The condition can be determined by CC self-consistent condition.
As alpha(i, ab, t) represents the likelihood ratio of the finite state i at the value ab at time t, we can check the maximum likelihood value of alpha(i) at time 0. In the next iteration, if the ML alpha does not change, then CTC converges.
like[i] calculates the likelihood of ab=i at the current step. like[i] sums over all state transition with ab = i. So LLR is expressed as MaxStar.